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88 lines
2.8 KiB
88 lines
2.8 KiB
4 months ago
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// Copyright 2020 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////////
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#include "json_proto_converter.h"
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namespace json_proto {
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void JsonProtoConverter::AppendArray(const ArrayValue& array_value) {
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data_ << '[';
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bool need_comma = false;
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for (const auto& value : array_value.value()) {
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// Trailing comma inside of an array makes JSON invalid, avoid adding that.
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if (need_comma)
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data_ << ',';
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else
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need_comma = true;
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AppendValue(value);
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}
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data_ << ']';
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}
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void JsonProtoConverter::AppendNumber(const NumberValue& number_value) {
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if (number_value.has_float_value()) {
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data_ << number_value.float_value().value();
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} else if (number_value.has_exponent_value()) {
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auto value = number_value.exponent_value();
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data_ << value.base();
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data_ << (value.use_uppercase() ? 'E' : 'e');
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data_ << value.exponent();
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} else if (number_value.has_exponent_frac_value()) {
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auto value = number_value.exponent_value();
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data_ << value.base();
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data_ << (value.use_uppercase() ? 'E' : 'e');
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data_ << value.exponent();
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} else {
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data_ << number_value.integer_value().value();
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}
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}
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void JsonProtoConverter::AppendObject(const JsonObject& json_object) {
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data_ << '{' << '"' << json_object.name() << '"' << ':';
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AppendValue(json_object.value());
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data_ << '}';
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}
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void JsonProtoConverter::AppendValue(const JsonValue& json_value) {
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if (json_value.has_object_value()) {
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AppendObject(json_value.object_value());
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} else if (json_value.has_array_value()) {
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AppendArray(json_value.array_value());
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} else if (json_value.has_number_value()) {
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AppendNumber(json_value.number_value());
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} else if (json_value.has_string_value()) {
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data_ << '"' << json_value.string_value().value() << '"';
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} else if (json_value.has_boolean_value()) {
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data_ << (json_value.boolean_value().value() ? "true" : "false");
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} else {
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data_ << "null";
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}
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}
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std::string JsonProtoConverter::Convert(const JsonObject& json_object) {
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AppendObject(json_object);
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return data_.str();
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}
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std::string JsonProtoConverter::Convert(
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const json_proto::ArrayValue& json_array) {
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AppendArray(json_array);
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return data_.str();
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}
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} // namespace json_proto
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